Surface treatment method for forming micro-porous structure on surface of aluminum alloy

A technology of aluminum alloy surface and microporous structure, which is applied in the field of surface treatment to form a microporous structure on the surface of aluminum alloy, can solve the problems of time-consuming and laborious, cannot be effectively and quickly removed, and achieve enhanced affinity, good roughness, and increased The effect of cohesion

Inactive Publication Date: 2015-07-08
佛山市华品通信技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the method of physical grinding is not only time-consuming and laborious, but also cannot effectively and quickly remove the oxides on the surface of the aluminum alloy to form a microporous structure on the surface of the aluminum alloy and have a better roughness. Therefore, it is necessary to develop a fast and excellent chemical etching method. Surface treatment method is the development direction of metal surface treatment etching technology in the future

Method used

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  • Surface treatment method for forming micro-porous structure on surface of aluminum alloy
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  • Surface treatment method for forming micro-porous structure on surface of aluminum alloy

Examples

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Embodiment 1

[0028] A surface treatment method for forming a microporous structure on the surface of an aluminum alloy, comprising the steps of: putting the aluminum alloy into a tank filled with pickling liquid for pickling treatment, the pickling liquid includes 50Kg of hydrochloric acid, 10Kg of diammonium hydrogen phosphate, Hexamethylenetetramine 0.1Kg, add water to dilute to 1000L, pickle at room temperature for 5 minutes, wash off raw material scale and rust; Rinse in the second water tank, rinse the scale and pickling solution; put the rinsed aluminum alloy into a tank filled with an amine aqueous solution for immersion treatment. The amine aqueous solution includes 20Kg of ethylenediamine, 1Kg of tolyltriazole, Add 5Kg of aniline, dilute to 1000L with water, impregnate at 65°C for 8 minutes; put the impregnated aluminum alloy into the third water pool with pH 5 to rinse, and rinse the residual amine-based aqueous solution.

[0029] Utilize the scanning electron microscope to obser...

Embodiment 2

[0031] A surface treatment method for forming a microporous structure on the surface of an aluminum alloy, comprising the steps of: putting the aluminum alloy into a tank filled with pickling liquid for pickling treatment, the pickling liquid includes 70Kg of hydrochloric acid, 15Kg of diammonium hydrogen phosphate, Hexamethylenetetramine 0.2Kg, add water to dilute to 1000L, pickle at room temperature for 7 minutes, wash off raw material scale and rust; Rinse in the second water tank, rinse the scale and pickling solution; put the rinsed aluminum alloy into a tank filled with an amine aqueous solution for immersion treatment. The amine aqueous solution includes 20Kg of ethylenediamine and 10Kg of tolyltriazole , 5Kg of aniline, diluted with water to 1000L, dipped at 70°C for 10 minutes; rinsed the impregnated aluminum alloy in a third pool with a pH of 6, and rinsed away the residual amine-based aqueous solution.

[0032] Utilize the scanning electron microscope to observe and...

Embodiment 3

[0034] A surface treatment method for forming a microporous structure on the surface of an aluminum alloy, comprising the steps of: putting the aluminum alloy into a tank filled with pickling liquid for pickling treatment, the pickling liquid includes 90Kg of hydrochloric acid, 20Kg of diammonium hydrogen phosphate, Hexamethylenetetramine 0.3Kg, add water to dilute to 1000L, pickle at room temperature for 9 minutes, wash off raw material scale and rust; Rinse in the second water tank, rinse the scale and pickling solution; put the rinsed aluminum alloy into a tank filled with an amine aqueous solution for immersion treatment, the amine aqueous solution is ethylenediamine 30Kg, tolyltriazole 4Kg, aniline 5Kg, add water to dilute to 1000L, impregnate at 75°C for 12 minutes; put the impregnated aluminum alloy into the third water pool with pH 7 to rinse, and rinse off the residual amine-based aqueous solution.

[0035] Utilize the scanning electron microscope to observe and take ...

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Abstract

The invention relates to a surface treatment technology of a metal material, and concretely relates to a surface treatment method for forming a micro-porous structure on the surface of an aluminum alloy. The method comprises the following steps: 1, putting the aluminum alloy in a tank provided with a pickling solution, and carrying out pickling treatment; 2, flushing the pickled aluminum alloy in a first water pool and a second water pool; 3, carrying out dipping treatment on the flushed aluminum alloy in a tank provided with an amine series aqueous solution; and 4, flushing the dipped aluminum alloy in a third water pool. Pickling in the surface treatment method can effectively and rapidly remove oxides on the surface of the aluminum alloy to make the micro-porous structure formed on the surface of the aluminum alloy, so the surface has good roughness, and has good adhesion force with a polymer material; and the dipping in the amine series aqueous solution enhances the affinity of the aluminum alloy to the polymer material, and further increases the adhesion force between the aluminum alloy and the polymer material.

Description

technical field [0001] The invention relates to a surface treatment technology of metal materials, in particular to a surface treatment method for forming a microporous structure on the surface of an aluminum alloy. Background technique [0002] In the process of aluminum alloy processing, in order to improve the adhesion of aluminum alloy and facilitate the subsequent treatment of the process, it is necessary to remove the oxide on the surface of aluminum alloy before using it. At present, physical grinding is often used to remove oxides on the surface of aluminum alloys and form a rough surface. [0003] However, the method of physical grinding is not only time-consuming and laborious, but also cannot effectively and quickly remove the oxides on the surface of the aluminum alloy to form a microporous structure on the surface of the aluminum alloy and have a better roughness. Therefore, it is necessary to develop a fast and excellent chemical etching method. The surface tr...

Claims

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Application Information

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IPC IPC(8): C23G1/02C23G1/12C23G1/24
Inventor 陈永成
Owner 佛山市华品通信技术开发有限公司
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